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Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam

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dc.citedby15
dc.contributor.authorMottakin M.en_US
dc.contributor.authorSelvanathan V.en_US
dc.contributor.authorSu'ait M.S.en_US
dc.contributor.authorRazali S.A.en_US
dc.contributor.authorIslam M.A.en_US
dc.contributor.authorIbrahim M.A.en_US
dc.contributor.authorMuhammad G.en_US
dc.contributor.authorAkhtaruzzaman M.en_US
dc.contributor.authorid57195305487en_US
dc.contributor.authorid57160057200en_US
dc.contributor.authorid57223117728en_US
dc.contributor.authorid57225826234en_US
dc.contributor.authorid57361246600en_US
dc.contributor.authorid55843508000en_US
dc.contributor.authorid56605566900en_US
dc.contributor.authorid57195441001en_US
dc.date.accessioned2025-03-03T07:44:14Z
dc.date.available2025-03-03T07:44:14Z
dc.date.issued2024
dc.description.abstractThis study investigated the pseudocapacitive energy storage system of biphasic CuSx and CoSx electrodeposited on nickel foam (NF). XRD, FESEM, and EDX show the formation of nano-flower-shaped biphasic layer on NF. The biphasic electrode shows higher areal specific capacitance (Csp) than the single-layered NF/CuSx and NF/CoSx electrodes. The Csp of the NF/CuSx/CoSx drops by 42 % as the scan rate (?) rises from 5 mV s?1 to 20 mV s?1. Electrode polarization and reduced ion migration occurring with rapid scan rates are responsible for this decrement. Galvanostatic charge-discharge (GCD) analysis showed that Csp declined from 11.42 to 9.63 F cm?2, and the retained Csp was 84 % as the current density shifted from 4 to 8 mA cm?2. The energy density of 0.30 mWh.cm?2 and power density of 1.57 mW cm?2 imply significant energy storage capability of the electrode. The kinetic analysis indicates that 78 % of the capacitance is diffusion-controlled process in the NF/CuSx/CoSx electrode. The b-value of around 0.7 suggests that the pseudocapacitance mostly originates from diffusion-controlled processes. The poor cyclic stability of NF/CuSx/CoSx was demonstrated by only upholding 61 % of its original Csp after 500 cycles. However, the higher coulombic efficiency indicates that a greater proportion of the electrical charge is stored in the supercapacitor. The study explores the biphasic design of copper and cobalt sulphide-based electrodes as potential pseudocapacitive energy storage system applications such as supercapacitors and supercapatteries. ? 2023 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.ArtNo111795
dc.identifier.doi10.1016/j.jpcs.2023.111795
dc.identifier.scopus2-s2.0-85178663463
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85178663463&doi=10.1016%2fj.jpcs.2023.111795&partnerID=40&md5=3ce7faddea516db37c65cac2c8327cec
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36729
dc.identifier.volume186
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleJournal of Physics and Chemistry of Solids
dc.subjectCapacitance
dc.subjectCobalt compounds
dc.subjectCobalt deposits
dc.subjectCopper compounds
dc.subjectElectric discharges
dc.subjectElectrodes
dc.subjectEnergy storage
dc.subjectNanoflowers
dc.subjectNickel
dc.subjectProcess control
dc.subjectSulfur compounds
dc.subjectSupercapacitor
dc.subjectBiphasic design
dc.subjectDiffusion-controlled process
dc.subjectMetal sulfides
dc.subjectNickel foam
dc.subjectPseudocapacitive
dc.subjectScan rates
dc.subjectStorage systems
dc.subjectSupercapatterie
dc.subjectTransitional metal sulphide
dc.subjectTransitional metals
dc.subjectElectrodeposition
dc.titleEnhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foamen_US
dc.typeArticleen_US
dspace.entity.typePublication
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